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28835456 = 271323143
BaseRepresentation
bin110110111111…
…1111010000000
32000020222210212
41231333322000
524340213311
62510013252
7500045246
oct155777200
960228725
1028835456
1115305561
1297a7228
135c87c00
143b88796
1527e8c8b
hex1b7fe80

28835456 has 96 divisors (see below), whose sum is σ = 65704320. Its totient is φ = 12579840.

The previous prime is 28835449. The next prime is 28835473. The reversal of 28835456 is 65453882.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670571 + ... + 670613.

It is an arithmetic number, because the mean of its divisors is an integer number (684420).

Almost surely, 228835456 is an apocalyptic number.

28835456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28835456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32852160).

28835456 is an abundant number, since it is smaller than the sum of its proper divisors (36868864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28835456 is a wasteful number, since it uses less digits than its factorization.

28835456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 89 counting only the distinct ones).

The product of its digits is 230400, while the sum is 41.

The square root of 28835456 is about 5369.8655476650. The cubic root of 28835456 is about 306.6495096472.

The spelling of 28835456 in words is "twenty-eight million, eight hundred thirty-five thousand, four hundred fifty-six".

Divisors: 1 2 4 8 13 16 26 31 32 43 52 62 64 86 104 124 128 169 172 208 248 338 344 403 416 496 559 676 688 806 832 992 1118 1333 1352 1376 1612 1664 1984 2236 2666 2704 2752 3224 3968 4472 5239 5332 5408 5504 6448 7267 8944 10478 10664 10816 12896 14534 17329 17888 20956 21328 21632 25792 29068 34658 35776 41912 42656 51584 58136 69316 71552 83824 85312 116272 138632 167648 170624 225277 232544 277264 335296 450554 465088 554528 670592 901108 930176 1109056 1802216 2218112 3604432 7208864 14417728 28835456